Upper and lower control arms

A body upper and lower control arms.

Are they all interchangeable and able to be mix and matched? Pre 72 to say 65 is what I'm questioning regardless if they were 9", 10" drums or disc brake?

I'm thinking just the lower ball joint is specific to the spindle that is being used and the arms are all mix and match prior to the big upper ball joint year cars in 73 and later